Question

4.
What is meant by hydrosphere? Briefly explain the importance of hydrosphere.
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Answer 1

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A hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet's hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers.

The major importance of the hydrosphere is that water sustains various life forms and plays an important role in ecosystems and regulating the atmosphere. Hydrosphere covers all water present on the Earth's surface.

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#Hope it helps..

Answer 2

ᴛʜᴇ ᴍᴀᴊᴏʀ ɪᴍᴘᴏʀᴛᴀɴᴄᴇ ᴏғ ᴛʜᴇ ʜʏᴅʀᴏsᴘʜᴇʀᴇɪs ᴛʜᴀᴛ ᴡᴀᴛᴇʀ sᴜsᴛᴀɪɴs ᴠᴀʀɪᴏᴜs ʟɪғᴇ ғᴏʀᴍs ᴀɴᴅ ᴘʟᴀʏs ᴀɴ ɪᴍᴘᴏʀᴛᴀɴᴛ ʀᴏʟᴇ ɪɴ ᴇᴄᴏsʏsᴛᴇᴍs ᴀɴᴅ ʀᴇɢᴜʟᴀᴛɪɴɢ ᴛʜᴇ ᴀᴛᴍᴏsᴘʜᴇʀᴇ.ʜʏᴅʀᴏsᴘʜᴇʀᴇ ᴄᴏᴠᴇʀs ᴀʟʟ ᴡᴀᴛᴇʀ ᴘʀᴇsᴇɴᴛ ᴏɴ ᴛʜᴇ ᴇᴀʀᴛʜ's sᴜʀғᴀᴄᴇ.